| 摘要 |
<p>PURPOSE:To perform simultaneously both the reading and writing actions and at the same time to increase the processing speed, by providing a temporary storage buffer register for the address and contents of storage in addition to a storage cell part. CONSTITUTION:In a chip enable state (with read chip enable signal set at 1), an read address A is supplied to the address inputs 2-a and 3-a of a semiconductor storage device forming part 1' by an address input switch circuit 4. Then a read data E is delivered. In this case, if a write request D is produced, the write address B and the write data C are stored temporarily at the leftd edge of a write address buffer register 5 and a write data buffer register 6 respectively. When the chip enable signal is set at O, the contents at the left edge of the register 5 is supplied to the inputs 2-a and 3-a by the circuit 4.</p> |
